Current, photocurrent and thermocurrent of borophene-black phosphorus heterostructures

•We calculated I-V curves, real space charge distribution, transmission spectrum, photocurrent, and thermal current.•Our results show that the zigzag device has excellent photocurrent characteristics.•The direction of photocurrent can be adjusted by changing the wavelength of incident light and adding gate voltage.•The armchair device has excellent IV curve characteristics and good linear characteristics at low voltage.•The armchair device also has good thermoelectric current properties.•The position distribution of covalent bonds in this heterostructure is revealed by the real space charge distribution.